1) in PPS material 2) temperature 240 centigrade 3) good quality 4) 20 years reputation 5) bags in any dimension ... anti -acid, anti-alkali, hydrolysis resistant, but it is not so good at anti –oxidant. Mainly be applied in waste incinerators, electric ... station boiler, industrial boiler, etc. SUITA PPS needle felt with good experiences for dust collecting in cement plants, iron and steel ...